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J. W. BARTON.

PRESSURE FLUID REGULATOR.

APPLICATION nuzo JULY 13. 1916.

1 ,3 1 6, 1 34. PatentedSept. 16, 1919.

WITNESS INVENTOB "I I 32 y' z Z @3242 Afro/Mr UNITED STATES PATENT OFFICE.

JOHN WJBARTON, OF NEW YORK, N. Y.

; A j PRESSURE-FLUID REGULATOR;

in a steam system heated by the regulated gas. One embodiment of the invention has been used successfully to control the gas flow to a dental vulcanizer where the maintenance of a'uniform temperature is highly desirable. 1

The invention contemplates a regulator in the form of a valvular organization disposed within the gas pipe line and controlled by the pressure in a curved tube attached to the valve.

One of the objects of my invention is to provide a compact form of device, of the character indicated, which shall be simple in construction and positive in itsaction and which at the same time will have a capacity for controlling relatively large volumes of gases within a small volume of space.

Another object of the invention is to provide in the compact device, instrumentalities for delicately adjusting and otherwise affecting one or more valve openings by eX- ternally manipulated control mechanism and which will positively insure a closing of the valve or valves on their seats at the preset actuating pressure without the necessity of adjusting anyof the valvular parts internally.

Another object of the invention is'to provide a construction arranged so that the valvular parts may be easily moved into an inoperative position even under those conditions where unbalanced pressures on opposite sides of the valve'tend to resist such movements.

Various other objects and advantagesof the invention will be in art obvious from an Specification of Letters Patent. Patented Sept. 16, 1919. Application filed aul ia, 1916. Serial to. 108,993.

In the accompanying drawings:

preferred embodiment of my invention with the front closing cover removed;

Fig. 2 is a transverse sectional view taken on the line 22 of Fig. 1, looking in the direction indicated by the arrow; and

Fig. 3 is a fragmentary view showing a portion of a'plan view at the top of the instrument shown in Fig. 1.

In the embodiment of the invention illus trated there is shown a fitting designed to be installed in the gas pipe line leading to the device supplied by the gas. The fitting is in the form of a.casting including a pipe member 41: divided by a transverse portion 5 to form an inlet chamber. 6 and outlet chamber 7 at opposite ends. The opposite ends of the fitting are threaded as shown at 8 to engage with the threaded end of the inter rupted gas line. A valvular mechanismcontaining-casing 9 is supported at one side of the pipe member and forms an intermediate chamber' 10 open to the inlet cham ber 6 through the inlet port 11 in the wall 12 between the pipe member chambers and the intermediate chamber. The casing 9 is shown to be of a general flat cylindrical form the outer end of which is closed by a cover 13 designed to provide ready access to the valvular mechanism hereinafter described. The gas passageway from the intermediate chamber to theoutlet chamber 7 includes an open ended centrally disposed tubular member 14 mounted in a suitable bearing 15 supported from the wall 12. A hollow cylindricalhub member 16 is rotatably mounted upon the tubular member 14 for rotary movement about the axis thereof. The tubular member is provided with several ports 17 placing the interior of the hubmember in connnunication with the bore of the tubular member. The hub-member has a plurality of curved tubular arms 18 mounted tobe revolved therewith. The arms are disposed ina plane at right angles to their axis of rotation and are in the form of small arcs of circles curvedin the same direction. The free ends of the arms are open to the chamber 10 and constitute, valve seats 19. The arms are cut so that the seats will always be disposed in a plane containing the axis of rotation thereof irrespective of the position of the valveseats on the casing. Thevalve seats are adjustedin their diiferent positions" about the axis of the tubular member is provided with a radially extending arm 20 the outer end of which is provided with a slot 21. A shaft-22 for swinging the arm 20 is rotatably mounted in a stuiiing box 23 extending through the back wa'll24c of the casing 9. A disk 25 is fixed to the inner end of the-shaft which disk. is provided with a pin 26 projecting therefrom eccentric from the axis of rotation of the shaft. The pin engages in the slot 21 so as to form a pin and slot connection between the control shaft and the swinging arm 20. The outer end of the shaft is provided with a milled head 27 for actuating the shaft. For the purpose of accurately ascertaining the position of the valve seat the milled head may be provided with graduations 28 movable with the head relative to an indicator 29 carried on top of the casing; The milled head also maybe provided with a stop pin or P5111830 designed to engage the indicator to limit the movement of the valve seat in either of its said directions .of movement. Obviously the positions of the stop pins 30 may be carried so as :to-indicate any desired or present maximum or minimum flow through the device.

.A plurality of valves 31', one for each valve seat, is mounted within the casing 9 in position closed on its correlated valve seat and thus act singularly or collectively to intercept the passage of gas from the chamleer 10 through the tubular member 14:. These valves are mounted for rotary movement about the axis of rotation of the valve seats so as to insure the square seating of the valve on its valve seat irrespective of the position of the seat.

In the embodiment of the invention illustr ated the valves constitute the free flat ends 'of a diametrically extending arm 32 rotatably mounted intermediate its length upon a s'tud bolt 32 also utilized to close the outer end of the tubular member 14. The valve arm is connected to the free end of a curved Bourdon spring tube '34 by means of a link and slot connection 35. The free end of this tube'is closed as is usual with devices of this character and the open end is rigidly attached to a nipple 86 the inlet 37 of which extends through the lower side of the casing and-is provided with external threads 38 designed to connect with the steam generator 'orzother-pi'essure source for regulating the actuation of the device.

Inorder'to maintain a suflicient supply of gas through the 'deviceso "as to maintain a pilot light in continuous operation a small perforation 39is placed in one-'or more of the valves so as to incompletely shut ofi the supply of gas to the'tubular member when the valves are seated. This perforation also pertorms the funetionof a: release valve and thus insures an easy movement of-the valve off its scat where unequal pressures are on opposite. sides of the seated valves.

If desired, the device may be provided with a by-pass for admitting the gas from the intermediate chamber through the outlet without passing through the pressure control valvular device hercinbctore described. For this purpose the wall 12 is provided with a port 40 frusto-conical in outline and designed to be closed by means of a valve ll the stem 42 of which is threaded and passed through a smiling box 43 in the side of the pipe member. The exterior end of the stem is provided with a milled head 44 for moving the valve manually to and from its closing position engaging the seat.

In operation, the milled head for swinging the valve seats is rotated until the desired position oi": the valve seats with reference to the'normal inactive position of their correlated valve is attained. As the temperature of the steam or other pressure medium in the curved arm rises the effect of such increase pressure on the tube is to cause the same to straighten out and thereby act through the link connection to draw the valve or valves toward and into engagement with their correlated valve seats. It is obvious that the closer the valve seat is to the valve the less pressure will be required to move the valve into its closing position on the seat and, contrarily, the farther the valve seat is away from its valve the greater is the pressure required to close the valve onto its seat.

Bymeans of this device a nieety of adjustment is provided, which will insure the ac curate closing of the valve at the preset pressure at which it is desired to actuate the device. Should it be desired to admit a flow, either constantly or at will, through the device the bypass valve may be regulated 011 its seat to effect the desired flow.

By 'means of a deviceof this character, it is obvious that the valve will close squarely on its seat irrespective of the initial position of the seat with reference to the valve and this square closing and adjustment is effected without the necessity of opening the casing to adjust any part of the valvular mechanism, the entire adjustment being provided by the one screw exteriorly of the casing. A valvular mechanism of the class disclosed is particularly susceptible for in stallation within a small volume casing and provides a means for installing a plurality of openings all within a limited space. Ready access 'is' provided to all of the parts, simply by removing the outer cover and all of the parts are peculiarly susceptible for ready demounting, repairing or substitutiO'Ii.

By shifting the position of the stop pin or pins it is possible for the operator to leave the instrument quickly, setting the valve seat so as to permit a small flow through the device without stopping to read the scale. Simply rotating the milled head 28 as far as permitted by the set pin will insure the proper predetermined flow.

While I have shown and described, and have pointed out in the annexed claims, certain novel features of my invention, it will be understood that various omissions, substitutions and changes in the form and details of the device illustrated and in its operation may be made by those skilled in the art without departing from the spirit of the invention.

Having thus described my invention, 1 claim:

1. In a device of the class described, the

combination of a conduit in the form of a curved pipe havmg an open end providmg a valve seat, said conduit mounted for rotary to adjust the position of said seat toward and from the normal position of the valve and means operatively connected to said valve to move the same relative to its seat.

2. In a device of the class described, the combination of a conduit having a plurality of open ends providing valve seats, said seats mounted for rotary movement about a fixed axis of rotation and disposed in a plane passing through said axis of rotation, valve mounted for rotary movement about said axis of rotation and designed to engage said seats squarely in their difierent adjusted positions, means for adjusting the position of said seats toward and from the normal. position of the valves and pressure controlled means operatively connected to the valves to move the same toward their seats with increase in pressure.

3. in a device of the class described, a conduit, a hollow hub member rotatably mounted on said conduit and opened thereto, a tubular inlet arm having one end open to said hub members and having its opposite end revolubly mounted for movement about the axis of said conduit into any desired angular position, said opposite end provided with a valve seat adjustable with the movement of the tubular arm, aspring having one end fixed in place, a valve linked to a movable part of the spring and adapted to be moved thereby into engagement with said valve seat in its several positions to close communication through said conduit, said spring designed to be eiiiected by pressure applied thereto to close the valve on to it adjustable seat and thus intercept the flow, through said conduit, hu'b member and tubular member.

4:. In a device of the class described, a containing casing, a plurality of inlet ports moval'ily mounted in said casing for adjustment about a fixed axis of rotation, and in the aggregate providing a relatively large area inlet, means for simultaneously adjusting the position of said ports, a plurality of valves one for each port, operatively mountedto close the same, and a curved hollow tube operatively connected to said valves to close the same by a pressure condition in said tube.

5. In a device of the class described, a pipe provided with an inlet at one end, an outlet at the other end and a separating partition therebetween, a casing having an opening thereto from theinlet end of the pipe, a conduit leading from the casing to the outlet end of the pipe, a pressure controlled valvular mechanism demountedly positioned on the part of the conduit in said casing for controlling the flow through said conduit, said casing provided with an opening affording direct access to said valvular mechanism and a cover for closing said opening.

6. In a device of the class described, a pipe provided with an inlet at one end, an outlet at the other end, and a separating partition therebetvveen, a casing having an opening thereto from the inlet end of the pipe, a tubular member for placing said conduit in fluid eomnmnication with the outlet end of the pipe, a hub member rotatably mounted on said tubular member, a curved tubular arm opening into said hub memberand provided with a valve controlled opening thereto from the casing, a valve rotatably mounted on said hub member and pressure actuated means connected to said valve to close the opening and means for supplying a fluid under pressure to said pressure actuated means.

Signed at New York city, in the county of'New York and State of New York, this 12 day of July, A. D. 19 16.

JOHN W. BARTON.

(topics or this patent may be obtained for five cents each, by addressing the ,Gommissioner of Patents, Washington, D. G. 

